What are some alternatives?
When comparing Branding Guide and zeroheight, you can also consider the following products
OpenBrand - OpenBrand helps designers, agencies, and brands work together. It is a smart home for all your logos, designs, and other creative stuff.
Frontify Style Guide - Create beautiful web-based brand manuals in minutes
Wake - A private space to share and discuss design work with your team.
Brandy - Keep brand assets in sync with your team and right at your fingertips for quick use.
Marvel - Turn sketches, mockups and designs into web, iPhone, iOS, Android and Apple Watch app prototypes.
pilcro - Get all your brand assets in one place with free brand guideline software. Access your brand assets quickly, save and share with Google